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Midland Railway of Western Australia G class
G51 at Northcliffe in July 1986
Type and origin
Power type
Diesel-electric
Builder
English Electric, Rocklea
Build date
1963
Total produced
2
Specifications
Configuration:
• AAR
C-C
• UIC
Co-Co
Gauge
1,067 mm (3 ft 6 in)
Wheel diameter
3 ft 1+1⁄2 in (0.953 m)
Minimum curve
250 ft (76.200 m)
Wheelbase
32 ft (9.754 m) total, 11 ft 6 in (3.505 m) bogie
Length
41 ft (12.497 m) over headstocks
Width
8 ft 11 in (2.718 m)
Height
12 ft 7 in (3.835 m)
Axle load
12+1⁄2 long tons (12.7 t; 14.0 short tons)
Loco weight
75 long tons (76.2 t; 84.0 short tons)
Fuel type
Diesel
Fuel capacity
700 imp gal (840 US gal; 3,200 L)
Prime mover
English Electric 8SVT Mk II
RPM range
450–850 rpm
Engine type
Four-stroke, four valves per cylinder
Aspiration
turbocharged
Generator
EE819/7E
Traction motors
Six EE548A
Cylinders
8 Vee
Cylinder size
10 in × 12 in (254 mm × 305 mm)
MU working
110V, stepless electro-pneumatic throttle
Loco brake
straight air
Train brakes
vacuum
Performance figures
Maximum speed
55 miles per hour (89 km/h)
Power output
1,030 hp (770 kW) gross, 950 hp (710 kW) net
Tractive effort
43,000 lbf (191.3 kN) at 5.9 mph (10 km/h)
Career
Operators
Midland Railway of Western Australia
Number in class
2
Numbers
G50-G51
First run
7 May 1963
Preserved
G50
Disposition
1 preserved, 1 scrapped
The G class were a class of diesel locomotives built by English Electric, Rocklea for the Midland Railway of Western Australia in 1963. They were later sold to the Western Australian Government Railways.
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Australia: University of Western Australia Press. p. 184. ISBN 1-875560-87-4. MRWA Waterways Section; BG&E Pty Ltd (April 24, 2006). "Floodway Design Guide"...
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